Fair Value Of Financial Instruments (Tables)

6 Months Ended

Feb. 29, 2012

Fair Value Of Financial Instruments [Abstract]

Financial Assets Measured At Fair Value On A Recurring Basis

     The table below sets forth our fair value hierarchy for financial assets measured at fair value on a recurring basis as of February 29, 2012 (in thousands):

		Quoted Prices in		Significant
		Active Markets		Other		Significant
		for Identical		Observable		Unobservable
		Assets		Inputs		Inputs
		(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents	$	12,703	$	—	$	—	$	12,703
Restricted cash (current)		7,215		—		—		7,215
Restricted cash (noncurrent)		8,011		—		—		8,011
Total	$	27,929	$	—	$	—	$	27,929

     The table below sets forth our fair value hierarchy for financial assets measured at fair value on a recurring basis as of August 31, 2011 (in thousands):

		Quoted Prices in		Significant
		Active Markets		Other		Significant
		for Identical		Observable		Unobservable
		Assets		Inputs		Inputs
		(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents	$	11,338	$	—	$	—	$	11,338
Restricted cash (current)		12,850		—		—		12,850
Restricted cash (noncurrent)		8,108		—		—		8,108
Total	$	32,296	$	—	$	—	$	32,296